Choosing an AI chatbot for WordPress plugin documentation

If you build or sell a WordPress plugin, many support questions already have an answer in your documentation: how to install it, where the license key goes, why a setting does not save. An AI chatbot for WordPress can answer those questions on your docs site, but the options differ more than their landing pages suggest.

This guide compares six options a plugin team is likely to consider: BetterDocs AI Chatbot, DocsBot, Chatbase, MxChat, Chatling and Docapta. Docapta is our product. It does fewer things than most of the others, and we say plainly where another option fits better.

Last updated: 2026-11-02

What to decide before you compare

Plugin or snippet. Some options are WordPress plugins configured in wp-admin; others give you a JavaScript snippet that you paste once into a site-wide header or footer, for example with WPCode. A plugin can use WordPress data directly, such as post types or user roles. A snippet works the same on WordPress and non-WordPress docs sites and adds no plugin to keep updated.
Answers from your docs only, or from the whole site. A bot that reads your entire website may answer from sales pages, old blog posts or changelogs. For support you usually want answers limited to the documentation pages you choose.
Source links. When an answer links the page it came from, the visitor can check the exact steps, and you can see which page needs fixing when an answer is wrong.
Who pays the model bill. Some tools include AI model usage in the subscription. Others ask you to connect your own OpenAI or other provider key, so you pay that provider separately, by usage.
What happens at the usage limit. Some bots stop answering until the next period; some offer automatic top-ups that add charges. Know which one you are signing up for.
Human handoff. License transfers, payment and refund questions should reach a person. Check whether the tool hands off to a live inbox, creates a ticket, or points visitors to your support page.

The six options at a glance

Option	How it installs	What it answers from	Who pays for the AI model	Starting price
BetterDocs AI Chatbot	Add-on for the BetterDocs PRO plugin	Post types you select on your WordPress site; the product page says it processes data from your entire website	You: your own OpenAI key (a paid OpenAI plan is required) or a Google Gemini key	Add-on $8.99/month or $69/year, plus BetterDocs PRO
DocsBot	WordPress plugin connected with a DocsBot API key; no embed code	Websites, sitemaps, files, WordPress exports, and connectors such as Notion, Confluence, Google Drive and help desk tickets	Included in AI credits; larger models use more credits	Free plan with 100 AI credits/month; Personal $49/month
Chatbase	Official WordPress plugin; paste your Agent ID	Files, text, websites, Q&A pairs, Notion pages and support tickets	Included in message credits	Hobby $32/month billed yearly ($40 monthly) for 700 message credits; no free plan listed
MxChat	Free plugin on WordPress.org, with Pro features	Pages, posts, WooCommerce products, PDFs, Word files, sitemaps, URLs and more	You: your own key for OpenAI, Anthropic, Google Gemini, xAI, DeepSeek, OpenRouter or a compatible endpoint	Free plugin; Pro $69.97 one-time
Chatling	Widget code pasted with a header/footer plugin (its WordPress guide uses Insert Headers and Footers)	Its own knowledge base, limited by characters	Included in AI credits	Free plan with 200 AI credits; Starter $25/month ($21/month billed annually)
Docapta	JavaScript snippet pasted once site-wide; no WordPress plugin	Public HTTPS HTML documentation pages you import, up to 50	Included in the plan	$39/month for 500 questions per trailing 31 days; no free plan

Prices and features checked on 2026-10-18 against the official pages listed under Sources.

Notes on each option

BetterDocs AI Chatbot

If your documentation already runs on BetterDocs, this keeps the bot inside WordPress. It requires BetterDocs PRO, and its setup guide says you add your own OpenAI API key and need a paid OpenAI plan; Gemini is also offered. You choose which post types it can retrieve from, which matters because the product page describes it processing data from your entire website. The product page does not describe source links or a human handoff.

DocsBot

DocsBot covers many source types and connectors, has a WordPress plugin that needs no embed code, and has a free plan to start. Its pricing page lists handoff tools that pass context to a person, and escalation ticket creation on the Standard plan. When monthly AI credits run out, the bot stops responding until the limit resets, unless you upgrade or turn on auto-added credits.

Chatbase

Chatbase is a broad platform for support and sales agents, with an official WordPress plugin. The Hobby plan is $32/month billed yearly for 700 message credits. When credits run low you can enable auto-recharge, listed at $40 per 1,000 message credits. A helpdesk inbox is included from the Standard plan.

MxChat

MxChat is a native plugin that reads WordPress content directly, including WooCommerce products. The plugin is free on WordPress.org, and the Pro license is a one-time $69.97 with lifetime updates. You bring your own model keys, so you pay the provider for usage. Its plugin listing describes live agent handoff through Slack and a transcript view that shows which pages were used for each reply.

Chatling

Chatling is a general no-code chatbot builder with a free plan. On WordPress you paste its widget code with a header/footer plugin. Its pricing page lists extra AI credits at $10/month per 1,000 and does not mention source citations.

Docapta

Docapta is narrower than the others. It answers only from the public HTML documentation pages you import (up to 50), links the source pages with each answer, and points account, order, payment and refund questions to the support channel you configure. It has no WordPress plugin, does not read PDFs, Word files or pages behind a login, has no free plan and takes no actions in customer accounts. The single plan is $39/month including model usage, with 500 questions per trailing 31 days shared with dashboard checks. Usage stops at the limit, with no automatic overage charges. See how it works.

Which one should you pick?

You want a free plugin and to pay only your model provider: MxChat. If your docs already use BetterDocs PRO, the BetterDocs AI Chatbot add-on keeps the bot inside the same plugin, also on your own OpenAI or Gemini key.
Your knowledge lives in many places (PDFs, Notion, Confluence, Google Drive, help desk tickets): DocsBot or Chatbase. Docapta cannot read those sources.
You want a support and sales agent across channels, with actions: Chatbase.
You want a general-purpose chatbot builder with a free plan: Chatling, or the DocsBot free plan.
You want answers only from your public documentation, a source link with each answer, and a fixed monthly price that includes the model and stops at the limit: Docapta may fit. Check the limits first: 50 pages and 500 questions per trailing 31 days.

For side-by-side detail, read Docapta vs Chatbase and Docapta vs DocsBot.

How to test any option before you commit

Use real questions. Take 10 to 20 questions from your support inbox or forum, in customers’ own words.
Mix the types. Include an installation question, a license question, a troubleshooting question, one your docs do not cover, and a refund question.
Check each answer against the page. Open the source link if there is one. If there is none, find the page yourself and compare the steps.
Check the edges. See what visitors get at the usage limit, how the handoff looks, and how the widget behaves on a phone.

Our knowledge base chatbot guide covers how to prepare your docs so any of these tools gives better answers.

Frequently asked questions

Do I need a WordPress plugin to add an AI chatbot?

No. A JavaScript snippet pasted once into a site-wide header or footer, for example with WPCode, works on WordPress. Plugins such as DocsBot, Chatbase, MxChat and BetterDocs AI Chatbot are configured inside wp-admin and can use WordPress data more directly.

Is there a free chatbot for WordPress?

MxChat is a free plugin on WordPress.org; you pay your model provider for usage. DocsBot has a free plan with 100 AI credits per month and Chatling a free plan with 200 AI credits. The BetterDocs AI Chatbot add-on, Chatbase and Docapta are paid.

Can the chatbot answer only from my documentation, not my whole site?

It depends on the tool and its settings. BetterDocs lets you choose which post types it retrieves from; DocsBot and Chatbase use the sources you add; Docapta reads only the documentation pages you import.

What should happen when the bot does not know the answer?

It should say it does not know and point the visitor to support, not guess. Test this with a question your docs do not cover before you publish the widget.

Can I try Docapta before putting it on my site?

Yes. After subscribing you can import your docs and test answers in the dashboard before adding the widget. Dashboard checks count toward the 500-question allowance.

Try Docapta on your own documentation

One plan: $39 per month for one assistant on one website, up to 50 public HTML pages and 500 questions per trailing 31 days. Usage stops at the limit; there are no automatic overage charges.

Create your assistant See pricing

Sources

Checked on 2026-10-18. Competitor details come from these official pages. Plans and features change; confirm on the official page before you decide.